Music theory learning device
The broken lines showing musical notations and numbers are included for the purpose of illustrating environmental structure and form no part of the claimed design.
Claims
The ornamental design for a music theory learning device, as shown and described.
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Type: Grant
Filed: Mar 29, 2024
Date of Patent: May 12, 2026
Inventor: David Farrell Melton (Maplewood, NJ)
Primary Examiner: Lauren D Mcvey
Application Number: 29/935,197